Uxcell Chrome-Vanadium Magnetic Hex Socket Nut Driver Setter, 3/8-Inch, 5-Piece Product Name : Hex Driver Bit; Material : Chrome-Vanadium Hex Socket Size : 9. 3mm/ 3/8"; Hex Shank Size : 6. 3mm/ 1/4" Overall Size : 13 x 65mm/ 0. 5" x 2. 5" (DL); Color : Gray Weight : 162g Package : 5 x Hex Driver Bits